<?php

class AlbumsController extends BackendController
{

	/**
	 * @return array action filters
	 */
	public function filters()
	{
		return array(
			'accessControl', // perform access control for CRUD operations
			'postOnly + delete', // we only allow deletion via POST request
		);
	}

	/**
	 * Specifies the access control rules.
	 * This method is used by the 'accessControl' filter.
	 * @return array access control rules
	 */
	public function accessRules()
	{
		return array(
			array('allow',  // allow all users to perform 'index' and 'view' actions
				'actions'=>array('index','view'),
				'users'=>array('*'),
			),
			array('allow', // allow authenticated user to perform 'create' and 'update' actions
				'actions'=>array('create','update'),
				'users'=>array('@'),
			),
			array('allow', // allow admin user to perform 'admin' and 'delete' actions
				'actions'=>array('admin','delete'),
				'users'=>array('quanghuyaid', 'tuan'),
			),
			array('deny',  // deny all users
				'users'=>array('*'),
			),
		);
	}

	/**
	 * Displays a particular model.
	 * @param integer $id the ID of the model to be displayed
	 */
	public function actionView($id)
	{
		$this->render('view',array(
			'model'=>$this->loadModel($id),
		));
	}

	/**
	 * Creates a new model.
	 * If creation is successful, the browser will be redirected to the 'view' page.
	 */
	public function actionCreate()
	{
		$this->actionUpdate();
	}

	/**
	 * Updates a particular model.
	 * If update is successful, the browser will be redirected to the 'view' page.
	 * @param integer $id the ID of the model to be updated
	 */
	public function actionUpdate($id='')
	{
		$model= $id ? $this->loadModel($id) : new Albums();

		// Uncomment the following line if AJAX validation is needed
		 $this->performAjaxValidation($model);

		if(isset($_POST['Albums']))
		{
			$model->attributes=$_POST['Albums'];
            $uploadImage = Helper::uploadImage($model, 'thumbnail_image', 'Albums');
            $model->thumbnail_image = $uploadImage;

            if(!$model->save()) {
                // ghi log khi co error
                Yii::log(CVarDumper::dump($model->getErrors(), 10, true), CLogger::LEVEL_WARNING, 'warning');
            } else {
                $this->redirect(array(
                        'view',
                        'id' => $model->id
                    )
                );
            }
		}

		$this->render('update',array(
			'model'=>$model,
		));
	}

	/**
	 * Deletes a particular model.
	 * If deletion is successful, the browser will be redirected to the 'admin' page.
	 * @param integer $id the ID of the model to be deleted
	 */
	public function actionDelete($id)
	{
        if (Images::model()->count("album_id = {$id}") > 0 || Comments::model()->count("album_id = {$id}") > 0 || Ratings::model()->count("album_id = {$id}") > 0) {
            $mess = "Cannot delete Album ID={$id} as it has related class data";
        } else {
            $model = $this->loadModel($id);
            $model->delete();
            $mess = "Delete Successfully";
        }

        echo CJSON::encode($mess);
        Yii::app()->end();
	}

	/**
	 * Lists all models.
	 */
	public function actionIndex()
	{
		$this->actionAdmin();
	}

	/**
	 * Manages all models.
	 */
	public function actionAdmin()
	{
		$model=new Albums('search');
		$model->unsetAttributes();  // clear any default values
		if(isset($_GET['Albums']))
			$model->attributes=$_GET['Albums'];

		$this->render('admin',array(
			'model'=>$model,
		));
	}

	/**
	 * Returns the data model based on the primary key given in the GET variable.
	 * If the data model is not found, an HTTP exception will be raised.
	 * @param integer $id the ID of the model to be loaded
	 * @return Albums the loaded model
	 * @throws CHttpException
	 */
	public function loadModel($id)
	{
		$model=Albums::model()->findByPk($id);
		if($model===null)
			throw new CHttpException(404,'The requested page does not exist.');
		return $model;
	}

	/**
	 * Performs the AJAX validation.
	 * @param Albums $model the model to be validated
	 */
	protected function performAjaxValidation($model)
	{
		if(isset($_POST['ajax']) && $_POST['ajax']==='albums-form')
		{
			echo CActiveForm::validate($model);
			Yii::app()->end();
		}
	}
}
